A Key to the commoner desmids of the English Lake District /
Lind, Edna M.(Edna Margaret)1902-
Brook, Alan J.
Langhorne, Joanna,1945-
Williamson, D.(David),1928-
Ambleside Freshwater Biological Association
1980
Text on inside covers
Bibliography: p120. - Includes index
Desmidiales
Botany